Thavius Beck walks through building a self-playing generative patch inside Bitwig's Poly Grid, showing how modular routing within the device can replace hands-on playing entirely. He explains the concept of device phase, the internal clock signal that drives step modules automatically, and demonstrates how to control it with the mute-when-stopped setting so the patch only runs when the transport is active.
A gate module sends triggers to an envelope, setting a rhythmic pulse without any notes being played manually. Beck then adds a pitches module to introduce melodic variation across the oscillators, with the step count set to 16 to create a longer, evolving pattern.
Because freely generated pitches don't automatically respect a project's key, he inserts a pitch quantize module into the signal path and selects specific notes to constrain the output. A scale steps module can then transpose those pitches relative to the project's key signature, keeping the generative material musical and harmonically grounded.